I'm unable to get stock's Volume data in a custom Coarse imported from a dropbox using a csv file.

Can anyone let me know what's wrong with the attached code ?

Error: Runtime Error: AttributeError : 'Symbol' object has no attribute 'Volume' 

from AlgorithmImports import *

class DropboxCoarseFineAlgorithm(QCAlgorithm):

def Initialize(self):

self.SetStartDate(2021, 7, 7) # Set Start Date
self.SetCash(100000) # Set Strategy Cash
self.AddUniverse(self.SelectCoarse, self.SelectFine)
self.UniverseSettings.Resolution = Resolution.Hour

self.url = "https://www.dropbox.com/s/e3w1j0hryzeprz2/tickersonly.csv?dl=1"

def SelectCoarse(self, coarse):

coarse = self.GetSymbols()

self.sortedByVolume = sorted(coarse, key=lambda x: x.Volume, reverse=True)

return [x.Symbol for x in self.sortedByVolume if x.Price > 0
and x.HasFundamentalData][:4]

def SelectFine(self, fine):

# Return symbols from our list which have a market capitalization of at least 10B
return [f.Symbol for f in fine if f.MarketCap > 1e10 and f.Symbol in symbols]

def GetSymbols(self):

self.universeData = self.Parse(self.url)

# In backtest load once if not set, then just use the dates.
if self.universeData is None:
self.universeData = self.Parse(self.url)

return self.universeData

def Parse(self, url):

# Download file from url as string
file = self.Download(url).split("\n")

# # Remove formatting characters
data = [x.replace("\r", "").replace(" ", "").replace(",", "") for x in file]

# Dictionary to hold list of active symbols for each date, keyed by date
symbolsByDate = []

# Parse data into dictionary

for arr in data:
symb = Symbol.Create(arr, SecurityType.Equity, Market.USA)

# symb = self.AddEquity(arr).Symbol

return symbolsByDate

def OnSecuritiesChanged(self, changes):
# self.Debug(f"Added Securities: {[security.Symbol.Value for security in changes.AddedSecurities]}")
# self.Debug(f"Removed Securities: {[security.Symbol.Value for security in changes.RemovedSecurities]}")